用于扩大多通道SiPMs有效面积的紫外透明透镜阵列的研制

Proceedings of the 5th International Workshop on New Photon-Detectors (PD18) Pub Date : 2019-08-15 DOI:10.7566/JPSCP.27.011009

A. Okumura, A. Asano, Kazuhiro Furuta, N. Hidaka, Yuki Nakamura, H. Tajima, A. Zenin

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引用次数: 0

摘要

我们开发了一种紫外透明透镜阵列，可以提高硅光电倍增管(SiPM)阵列的光子探测效率，该阵列由64个像素(每个像素3\times3$ mm$^2$)和0.2 mm间隙组成。通过在每个$3.2\times3.2$ mm$^2$区域上的平凸球面透镜，我们发现由于像元间隙导致的光子探测效率损失可以被恢复，因为入射光子集中在SiPM阵列的敏感区域。通过使用原型透镜阵列，我们在目标入射角为30-60°时实现了大约10%-30%的光子探测效率相对提高。

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Development of a UV-Transparent Lens Array for Enlarging the Effective Area of Multichannel SiPMs

We developed a UV-transparent lens array that can increase the photon detection efficiency of a silicon photomultiplier (SiPM) array comprising of 64 pixels ($3\times3$ mm$^2$ each) and 0.2-mm gaps. Through the plano-convex spherical lens on each $3.2\times3.2$ mm$^2$ region, we showed that the loss of photon detection efficiency due to the pixel gaps could be recovered as the incident photons get concentrated on the sensitive regions of the SiPM array. By using a prototype lens array, we achieved approximately 10%-30% relative increase in photon detection efficiency in our target angles of incidence of 30-60 deg.

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Proceedings of the 5th International Workshop on New Photon-Detectors (PD18)

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